Efficient production of renewable hydrocarbon fuels using waste CO2 and green H2 by integrating Fe-based Fischer-Tropsch synthesis and olefin oligomerization

Ruxing Gao, Leiyu Zhang, Lei Wang, Chundong Zhang, Ki-Won Jun, Seok Ki Kim, Hae-Gu Park, Ying Gao, Yuezhao Zhu, Hui Wan, Guofeng Guan and Tiansheng Zhao

Energy, 2022, vol. 248, issue C

Abstract: Recently, Power-to-Liquids (PtL) and Power-to-Gas (PtG) technologies have been regarded as promising pathways for renewable energy storage and CO2 mitigation. Herein, we newly proposed two PtL/PtG hybrid processes (Cases A and B) by integrating the Fe-based Fischer-Tropsch (F-T) synthesis and olefin oligomerization, to further enhance the production of value-added liquid hydrocarbons. The process modelling and case study were implemented to evaluate their process performances by using Aspen Plus. In addition, the effects of different feeding conditions (i.e., CO/CO2 feeding) and process configurations (i.e., F-T synthesis only or two-stage reactor) were also comparatively analyzed. It is found that both Cases A and B are efficient technologies for converting CO2 into value-added hydrocarbons, and Case A is found to be more beneficial in the aspects of the carbon and thermal efficiencies, and net CO2 reduction. While, Case B is competitive in producing high-value liquid hydrocarbons. Moreover, the options of CO2 feeding and two-stage reactor are more preferable than the options of CO feeding and F-T synthesis only, and both Cases A and B are more competitive in the aspects of syncrude production, thermal efficiency, and CO2 reduction, as compared to the Base cases 1–3.

Keywords: CO2 utilization; Process integration; Fischer-tropsch synthesis; Olefin oligomerization (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:248:y:2022:i:c:s0360544222005199

DOI: 10.1016/j.energy.2022.123616

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